1998 Chevrolet Astro Owner's Manual - Page 149
1998 Chevrolet Astro Manual
Page 149 highlights
A CAUTION: Don't keep drivingif the oil pressure is low. If you do, your engine can become hot thatit so catches fire.You or others could be burned. Check your oil as soon as possible and have your vehicle serviced. Security Light This light will come on briefly when you turn the NOTICE: Damage to your engine from neglected oil problems can be costly and is not covered by your warranty. The light will stay on until the engine starts. If the light flashes, the Passlock" System has entered a tamper mode. If the vehicle fails to start, see "Passlock" in the Index. If the light comes on continuously while driving and stays on, there may be a problem with the Passlock System. Your vehicle will not be protected by Passlock, and you shouldsee your GM dealer. 2-65